How to compare two subroutine return values, to trigger email

anakin30 has asked for the wisdom of the Perl Monks concerning the following question:

i have two subroutine, returning string type value.

and i print the return value using ampersand "&", example &DB_query1 and &DB_query2.

i need to compare these two string values, trigger an email notification if they are not equal, can i get some advice or reference or sample in here...

thanks....

Back to Seekers of Perl Wisdom